2005 Hummer H2: problems, recalls and reliability
3 recalls and 79 owner complaints on record; the weakest area is electrical system (27% of complaints); the 2006 and 2007 model years look more trouble-free.
Data updated weekly · latest recall Feb 2006
All counts are reports filed with NHTSA in the United States - US market only, not worldwide totals.
Common problems
Computed from 79 owner complaints filed with NHTSA for this exact model year.
“The contact owns a 2005 Hummer H2. The contact stated that while the vehicle was parked, fluid started to leak from the steering wheel. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 140,000.”Owner report · Steering · Mar 2026
“The contact owns a 2005 Hummer H2. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed, and the brakes made a whistling sound. The contact, an independent mechanic, diagnosed that the brake booster needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and confirmed that there was no recall associated with the VIN. The failure mileage was approximately 70,000.”Owner report · Service Brakes, Hydraulic · May 2021
“While traveling on the main roads the speedometer intermittently malfunctions then drops to zero, whereas I'm literally unable to determine my speed this seems to occur when the engine warms up and I been driving for better than a half hour.”Owner report · Power Train · Nov 2020
Show 7 more owner reports
“The contact owns a 2005 Hummer H2 equipped with Cooper Tires, Tire Line: Discoverer, Tire size: 35X13.50R20LT, DOT Number: 1V1261B4V1724. The contact stated that while the vehicle was being serviced and on a lift, the mechanic became aware that all four tires were split in the middle of each tire. The vehicle was taken to a tire retailer where the tires were originally purchased and replaced, but the failure reoccurred. The contact stated that on another occasion, while the tires were being rotated, the mechanic became aware that the rear driver's side tire had a tear in the sidewall. The tire was replaced. The manufacturer was notified of the failure. The failure mileage was unknown.”Owner report · Tires · Jun 2020
“The computer in the h2 hummer malfunction. Wipers will not turn off. 4 wheel drive will not engage. Engine light comes on. Everything the computer controls is failing.”Owner report · Electrical System · Sep 2019
“Check engine light keeps coming on and light blinks than stays on until I take it in for service. The shop can't figure out why it is doing this had it shop about 7-8 times for service. Also code states can cause a possible fire”Owner report · Unknown Or Other · Jul 2019
“Vehicle has 133,000 miles. It has now experienced an exhaust manifold gasket leak due to broken bolts. This is causing noise from the engine area, and is unsafe due to the leak of hot gases being released from the engine at the points of failure (broken bolts). This may be an epa concern as well, and could also lead to failure of catalytic converter. Repair estimate is $1,300. An online search yields hundreds of other results with same failure and complaint on all gm v8 engines for years 1999-2007. This affects the 4.8l, 5.3l, and 6.0l models. This is a design failure and the affected vehicles with these engines should be recalled.”Owner report · Engine · Jul 2018
“Heater fan blower motor started working intermittently while car in motion, then smell of burning electrical. Wiring harness to heater under the glovebox was burning hot to the touch and melted all the wires. Plastic wire harness component completely destroyed and almost caught fire.”Owner report · Electrical System · Jan 2018
“Heater fan control knob overheats. When heater was in operation the heater control knob area above and below the cvery hot to the touch, heating up radio and other front dash components. Prior to this, instrument panel gauges stopped working completely for gas gauge and rpms, and stops working intermittently for speedometer (occurred around 100k miles).”Owner report · Electrical System · Dec 2017
“Takata recall hasn't included but should have included the h2 hummer 2005. This light is on constantly. Feel very unsafe driving it. Now, because they are trying to say it's the consumers responsibility. I will take this matter to the news stations if I have to. That's totally ridiculous. The vehicle was parked and when we got into it to leave the light was on and blinking and would not go off.”Owner report · Air Bags · May 2017
When filing, owners marked a crash in 3 of these complaints and injuries in 2 - self-reported to NHTSA, not verified accident statistics.
Recalls - 3 campaigns
CERTAIN FABTECH AFTERMARKET REPLACEMENT PITMAN ARMS, P/NOS. FTS71000 AND FTS71001, INSTALLED FOR USE ON CERTAIN 2001-2006 GM C/K 2500 PICK UP TRUCKS AND SPORT UTILITY VEHICLES. THE PIN LOCATED INSIDE THE PITMAN ARM CAN SHEAR OFF DUE TO A REVERSE BENDING FATIGUE CONDITION, RESULTING IN A TOTAL LOSS OF STEERING CONTROL.
Remedy: FABTECH WILL NOTIFY OWNERS AND REPLACE THE PITMAN AND IDLER ARMS FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING FEBRUARY 2006. OWNERS MAY CONTACT FABTECH AT 909-597-7800.
CERTAIN TRUCKS, SPORT UTILITY VEHICLES, AND VANS EQUIPPED WITH BOSCH HYDRO-BOOST BRAKE ASSEMBLIES, THE HYDRAULIC BRAKE BOOSTER PRESSURE ACCUMULATOR MAY CRACK AND SEPARATE FROM THE HYDRO-BOOST ASSEMBLY DURING NORMAL OPERATING CONDITIONS.
Remedy: DEALERS WILL TEST THE HYDRO-BOOST ASSEMBLY FOR FUNCTIONAL OPERATION OF THE TWO-FUNCTION VALVE. IF THE HYDRO-BOOST ASSEMBLY FAILS THE TEST, DEALERS WILL REPLACE THE ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON MARCH 23, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC TRUCKS AT 1-866-996-9463 AND HUMMER AT 1-800-732-5493.
ON CERTAIN CREW CAB PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE 2ND ROW CENTER OCCUPANT SEAT BELT ROUTING MAY MAKE IT DIFFICULT TO POSITION THE LAP PORTION OF THE SAFETY BELT LOW AROUND THE HIPS OF OCCUPANTS, ESPECIALLY SMALLER OCCUPANTS, SEATED IN THIS POSITION. APPROPRIATE USE OF A CHILD SEAT OR BOOSTER SEAT, AS RECOMMENDED FOR SMALL CHILDREN, DOES IMPROVE THE FIT CONDITION FOR THIS USER GROUP. IN ADDITION TO INSTRUCTIONS ON PROPER INFANT AND YOUNG CHILD RESTRAINT (WITH CHILD SEATS OR BOOSTERS), SPECIAL VERBIAGE FOR RESTRAINING OLDER CHILD IS INCLUDED IN THE OWNER'S MANUAL. ALSO, THE SUGGESTED SEAT BELT FIT/ROUTING FOR ADULTS, IRRESPECTIVE OF SEATING POSITION, IS DESCRIBED IN THE OWNER'S MANUAL TEXT.
Remedy: DEALERS WILL CUT OPEN THE GUIDE LOOP, REMOVE A PORTION OF THE LOOP, AND THEN THE REMAINING TWO SIDES SHOULD BE FOLDED OVER AND SECURED WITH A RETAINER FREE OF CHARGE. THE RECALL BEGAN ON JULY 21, 2005. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, OR HUMMER AT 1-800-732-5493.
Specifications
Factory options offered for the 2005 model year, decoded from the NHTSA vPIC database. Individual vehicles have one of each.
How other years compare
Check your exact H2 by VIN
Recalls and equipment differ between individual vehicles. Decode your VIN to see what applies to yours.
Open VIN decoderFrequently asked questions
Is the 2005 Hummer H2 reliable?
NHTSA has 79 owner complaints and 3 recall campaigns on record for the 2005 Hummer H2. The most complained-about area is electrical system (27% of complaints).
At what mileage do 2005 Hummer H2 problems usually appear?
Half of the complaints that mention mileage were filed at 70,000 miles or less.
Does the 2005 Hummer H2 have open recalls?
3 recall campaigns have been issued, the latest concerning steering. Check your specific vehicle by VIN - recall repairs are free at franchised dealers.
Source: NHTSA recall campaigns and owner complaints (public domain). Counts reflect reports on file and are not a defect rate.